Nigger bar



May 20, 1930 rc. c. BRAYToN 1,759,037 I NIGG'ER BAR I Filed Aug. 25, 1927 2 Sheets-Sheet l- May 20, 1930. c. c. BRAYToN NIGGER BAR Filed Aug. 25, 1927 2 Sheets-Sheet 2 Patented May 20, 1930 UNITED STATES PATENT oFFicE,

COREY C. BRAYTON, OF BERKELEY, CAIL'IIEORINIA;v ASSIGNOR TO AMIIELRICAN"IVIANGA-l NESE STEEL COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE NIGGER i341;

Application mea August 25, i927. "serial No. 215,299;

The invention pertains to a log turner or nigger bar, and particularly to a manganese cast steel nigger bar, the body of which is of integral construction and is provided with teeth pivoted to the bar in a novel manner.

The main problem in theuse of a nigger bar for turning logs is the abuse it gets rather than the use to which it is put. It a log is turned on the fly, the carriage is often moving when the teeth are in contact with the log, and it is to be readily understood that this is very hard on the bar, and in addition to this, a careless Sawyer is apt to hook onto the carriage head block, which may be still harder on the bar, and unless the bar isV of inherent rugged construction and material, many breaks occur with their consequent eX- pensive repair bills.

It is therefore an object of this invention to provide an inexpensive nigger bar of' rugged construction, which is of long life and is inexpensive to manufacture and maintain.

Another object is to provide anA integral manganese cast steel nigger bar instead of the usual carbon steel one, a portion of which is of I-beam construction, and is provided with teeth pivoted to said bar in a novel manner.

A further object is to provide an integral nigger bar provided with a spacer at the top thereof joining the flanges of the tooth slot, said spacer having a rounded portion toward vthe log engaging side of the har.

A more specific object is to provide a tooth pivot for a nigger bar which is of novel design for maintaining the pivot in tight disposition. Y

Other and more specificv objects will readily appear from lthe detailed description and claims appended hereto.

In the drawings, wherein similar reference characters are used to designate similar parts Figure 1 is a side elevation partly in see tion of the improved nigger bar;

Figure 2 is a broken edge elevation of the improved nigger bar, a portion being in section, taken substantially on the line 2-2 of Figure 1;

Figure 3 is a plan taken substantially on line 3-3 oiC Figure 1';

Figure 4 is a side elevation of a portion oi" the head ot' the nigger bar, showing the disposition of the teeth Y Figure 5 's a side elevation of Figure 4;

and

, Figure 'is a sectional plan taken substantially on line 6 6 of Figure 4, and showing the projections provided on either side of the top tooth. i

The manganese nigger bar may be conveniently formed with a shank 1 which is of substantial I-beam section, comprising the flanges 1a which are connected by the web 1b. This shank terminates in a head which may conveniently be made of a prolongation of the flanges 1a, but the web 1lb in way of the lower tooth extends upwardly and outwardly to the Aedge of the flanges to forni a lower tooth stop as shown at 15. Any number of teeth 6 may be provided, which teeth are adapted to be positioned between and have contact with Atooth stop (or spacer) forming connecting portions 15, similarto 15, as particularly shown in Figure 1. This head terminates in a shoulder 7 rounded toward the log engag- Aingedge, disposed atthe top of the bar, and

of less diameter than the head flanges. The shouldered head is connected to the front Jface of the flanges by th'e'sloping portion 14, so

disposed that `when the upper tooth, which is preferablyof T construction (as shown in Figure 5), is in raised or inoperative position, (as shown in the dotted lines in Figure 4'),

this tooth `will clear the front edge of the bar. i

The shank at its lower end terminates in a baseportion 2 which may be provided with a continuous flange 13 and a web 12 therehe- Y tween having the lightening hole 11 therein.

'Said baseportion is provided with spaced flanges 3 having fastening holes 14 and let having suitable bushings for the reception of fastening inea-ns between the bar and the usual operating and anchoring means respectively. Any operating means may be used, as, for instance, the usual piston and cylinder arrangement, and it is found desirable to pivot an anchor bar to one hole 14 to move the bar in a predetermined manner in a guide slotand to take side strain off the cylinders and prevent backing away from the log.

The teeth are held in position between the flanges of the head by a novel pivot means which comprises a hollow T-shaped pin 9 which is adapted to be inserted in the eyes provided in the flanges and which extends nearly through the opposite liange. A rivet 8 is inserted in this hollow pin. This rivet will extend through the pin, and the point will be clinched on a suitable washer 10 providing a flush construction with the outside of the iange, or will be inserted the opposite way and clinched in the head ot' the pin.

' The pinhead lits tight-ly in the recess provided in the flange and cannot move or rock thereby preventing undesirable wear on the eyes. It will be seen that the pivot formed is of very rugged construction, though due to the graduated recess in the pin head, the rivet may be removed easily by the use of a cold chisel or other means applied to the rivet point. This form of the pivot has been found desirable in that there is no tendency for the pivot to work loose, and it is of considerable stronger construction than the usual rivet or bolt pivot.

It is to be understood that the modification shown is merely by way of illustration and not limitation as many and various forms will occur to those skilled in the art.

I claim:

1. A nigger bar comprising, in combination, an integral base and shank, the latter being substantially I-shaped in cross-section, and a plurality of teeth mounted in openings within the shank, the mounting for each of said teeth comprising a hollow pin having a headed portion adapted to engage the walls of a. recess formed in the shank to prevent rotation ot' the pin, and a headed rivet extending through the hollow pin to prevent accidental displacementthereof, the heads of said pin and said rivet being disposed within the body of the shank. y

2. A nigger bar comprising, in combination, an integral base and shank, the latter being substantially I-shaped in cross section, and a plurality of teeth mounted in openings within the shank, the mounting for each of said teeth comprising a hollow pin having a T-shaped headed portion adapted to engage the side walls of an elongated recess formed in the shank to prevent rotation of the pin, and a headed rivet extending through the formed in the shank, and one of the heads of the pin and rivet being smaller than the recess within which it reposes to render it readily accessible 1n dismantling the mounting.

Signed at Berkeley, California, this 11th-- day of August, 1927.

COREY C. BRAYTON. 

